在刷新运行asp.net停止按钮事件 [英] asp.net stop button event running on Refresh

问题描述

我有在我的C＃单击事件的按钮。这个伟大的工程。然而afetr pressing F5刷新页面，我注意到按钮事件。出现这种情况我点击F5每次。如果（page.IsPostBack）我已经添加和方法仍然运行。

I have a button that has click event in my C#. This works great. However afetr pressing F5 to refresh the page I noticed the button event is fired. This occurs every time I click F5. I've added if(page.IsPostBack) and the method still runs.

有没有办法从烧制F5刷新按钮被点击时停止这种方法吗？

Is there any way to stop this method from firing when the F5 Refresh button is clicked?

谢谢！

http://pastebin.com/9ycNraaT

推荐答案

如果您有需要运行一次一个页面，你应该在你的code是$ P $实现逻辑pvents运行多个相同的方法倍。在伪code：

If you have a page that needs to be run once, you should implement logic in your code that prevents the same method from running multiple times. In pseudo-code:

if (canExecuteMethod()) {
    executeMethod();
} else {
    displayMessageThatMethodCannotBeExecuted();
}

例如，您可以检查与会话变量canExecuteMethod（），它返回false时，它不是present和设置 executeMethod（）：

For example, you can check a Session variable with canExecuteMethod(), which returns false when it is not present and is set in executeMethod():

function canExecuteMethod() {
     return Session["methodIsExecuting"] == null 
         || Session["methodIsExecuting"] == false;
}

function executeMethod() {
    Session["methodIsExecuting"] = true;
    // ...
}

当然使用Session变量已经它限制，所以你可能要考虑使用一个数据库或者AppSettings的变量，而不是。

Of course the use of a Session variable has it limits, so you might want to consider using a database or AppSettings variable instead.

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